公开(公告)号：US11840931B2

公开(公告)日：2023-12-12

申请号：US17599764

申请日：2020-03-19

Applicant: SAIPEM S.P.A.

Inventor： Salvatore De Rinaldis ,  Massimiliano Sbarsi ,  Lucio Aurilio ,  Anton Marco Fantolini

IPC: F01D15/10 ,  F01D25/10

CPC classification number: F01D15/10 ,  F01D25/10

Abstract: A process for regasifying a fluid and producing electrical energy includes subjecting a working fluid to 1) high-pressure pumping, 2) heating in a recovery unit to obtain a heated flow, the heating step comprising a low-temperature heat recovery step 2a) and a high-temperature heat recovery step 2b), 3) further heating to obtain a further heated flow, 4) expanding in a turbine, with production of electrical energy, to obtain an expanded flow, 5) cooling in a recovery unit by heat exchange, in a step 5a) with the flow of step 2b) and in a step 5b) with the flow of step 2a) to obtain a cooled flow, 6) expanding with production of mechanical energy, and 7) condensing the flow of working fluid. After step 5), a portion of the flow of working fluid is not subjected to step 6) and is subjected to a recompressing step.

公开(公告)号：US12066154B2

公开(公告)日：2024-08-20

申请号：US17598773

申请日：2020-03-18

Applicant: SAIPEM S.P.A.

Inventor： Massimiliano Sbarsi ,  Lucio Aurilio ,  Anton Marco Fantolini ,  Salvatore De Rinaldis

IPC: F17C9/02 ,  F17C5/06

CPC classification number: F17C9/02 ,  F17C5/06 ,  F17C2221/033 ,  F17C2223/0161 ,  F17C2223/033 ,  F17C2227/0135 ,  F17C2227/0323 ,  F17C2227/0327 ,  F17C2227/0362 ,  F17C2260/046 ,  F17C2265/05

Abstract: A process for regasifying a fluid and generating electrical energy includes subjecting an operating fluid to 1) pumping, the pumping step including a low pressure pumping step 1a) and a high pressure pumping step 1b), 2) heating in a recuperator to obtain a heated flow, the heating step including a low temperature heat recovery step 2a) and a high temperature heat recovery step 2b), 3) further heating through a high temperature source to obtain a further heated flow, 4) expanding in a turbine, with generation of electrical energy to obtain an expanded flow, 5) cooling by heat exchange to obtain a cooled flow, and 6) condensing the flow of the operating fluid and regasifying the fluid. After low pressure pumping, a portion of the flow of the operating fluid is subjected to recompression to obtain a flow combined with the flow of the operating fluid obtained from step 2a).